EP0785693A1 - Protokoll für lokale Leitweglenkung für aus dem öffentlichen Fernsprechnetz ankommende Anrufe in ein zellulares Netz - Google Patents

Protokoll für lokale Leitweglenkung für aus dem öffentlichen Fernsprechnetz ankommende Anrufe in ein zellulares Netz Download PDF

Info

Publication number
EP0785693A1
EP0785693A1 EP97400069A EP97400069A EP0785693A1 EP 0785693 A1 EP0785693 A1 EP 0785693A1 EP 97400069 A EP97400069 A EP 97400069A EP 97400069 A EP97400069 A EP 97400069A EP 0785693 A1 EP0785693 A1 EP 0785693A1
Authority
EP
European Patent Office
Prior art keywords
mobile subscriber
location
transceiver
network
message
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97400069A
Other languages
English (en)
French (fr)
Other versions
EP0785693B1 (de
Inventor
François Despres
Olivier Blondeau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Orange SA
Original Assignee
France Telecom SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by France Telecom SA filed Critical France Telecom SA
Publication of EP0785693A1 publication Critical patent/EP0785693A1/de
Application granted granted Critical
Publication of EP0785693B1 publication Critical patent/EP0785693B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/02—Inter-networking arrangements

Definitions

  • a cellular telephone network is constituted, as shown in FIG. 1 a, by at least one ERR radio transceiver, per mobile subscriber, in radio link with a plurality of fixed radio stations BFR 1 to BFR 3 , interconnected in a tree structure by URB terminal connection units to a mobile subscriber authentication center CAP, the assembly constituting the cellular telephone network proper.
  • UAP mobile telephone network access unit
  • the aforementioned protocol conventionally requires a procedure for locating each mobile subscriber in the mobile telephone network.
  • the abovementioned protocol has drawbacks, linked essentially to the very structure of the mobile radio network.
  • drawbacks we can first cite the fact that the management of daughter terminals is done manually, when adding one or more BFR terminals.
  • the object of the present invention is to remedy the drawbacks mentioned above.
  • Another object of the present invention is the optimization of the management of mobile subscribers of a cellular telephone network, thanks to the use of the services and infrastructures of the public switched telephone network, in particular of the personal communications service of the switched telephone network. and the Direct Selection on Arrival, SDA, function of the integrated services digital network, ISDN.
  • the local routing protocol for incoming calls generated by the telephone handset of a subscriber of the public switched network in a cellular telephone network is implemented when the telephone handset is interconnected with a unit of access to the mobile telephone network consisting of a switch of local access to the services of a digital network with integrated services, the cellular telephone network comprising at least one mobile subscriber transceiver provided with a telephone call number, to which the incoming call is addressed, and a plurality of fixed radio terminals interconnected in clusters in a tree structure to connection units and to a mobile subscriber authentication center by specialized digital transmission lines.
  • the fixed radio terminals are provided with cellular radiotelephony transmission channels, each have a set of direct selection numbers on arrival and are each linked to an authentication center for access to services by means of the switch. local access to services, a service control point and a voice location server.
  • the mobile subscriber transceiver is further equipped with means of access to the personal communications service of the switched telephone network from an identification number and a confidential code, the telephone call number, the number identification code and confidential code being assigned to the mobile subscriber transceiver.
  • the protocol object of the present invention, finds application in the management of mobile telephone networks in which the fixed radio terminals are provided with transmission channels in mobile radiotelephony, service of personal communications of the switched telephone network and the DID function of the ISDN integrated services digital network.
  • any telephone handset of a subscriber of the public switched network, carrying the reference CTA is interconnected with a mobile phone network access unit, denoted UAP.
  • This unit is generally constituted by a local access switch to the services of a digital network with integrated services, for example.
  • the cellular telephone network comprises at least one transceiver, noted ERR, of which a mobile subscriber is the holder, this transceiver ERR being provided with a telephone call number to which of course the incoming call generated by the telephone handset CTA must be addressed.
  • the cellular telephone network also comprises a plurality of fixed radio terminals, denoted in the figure BFR 1 to BFR 3 , these fixed radio terminals being interconnected in clusters according to a tree structure to a connection unit denoted URB-2G.
  • URB-2G connection unit
  • Each URB-2G connection unit is linked to a mobile subscriber authentication center, denoted CAP, by means of specialized digital transmission lines, or dedicated links.
  • CAP mobile subscriber authentication center
  • the access unit to the mobile telephone network UAP is also connected to the authentication center CAP by a similar dedicated link.
  • each fixed radio terminal BFR 1 to BFR 3 is provided with transmission channels in cellular radiotelephony allowing the sending and reception of radio messages to the radio transceiver ERR as well as personal communication services.
  • the switched telephone network and the DID function of the integrated services digital network denoted ISDN.
  • the mobile subscriber and the ERR transceiver available to the latter are deemed to be provided with an access resource to the personal communications services SCP of the switched telephone network.
  • Each radio station mentioned above has a set of direct selection numbers on arrival, DID numbers, and are each linked to a service access authentication center, denoted CAAS in FIG.
  • CAS local access switch for services
  • PCS-R PCS-R service control point
  • SVL voice location server
  • the equipment of each fixed radio terminal in infrastructure allowing access to the SCP services of the switched telephone network is conventional and, as such, will not be described in detail.
  • the ERR mobile subscriber transceiver is also equipped with means of access to the SCP services of the switched telephone network from an identification number and a confidential code. It is of course understood that the aforementioned identification number and confidential code are thus assigned to the mobile subscriber transceiver ERR.
  • the mobile subscriber holder of the ERR transceiver has access parameters to the SCP services, via the switched telephone network, these parameters being constituted by the identification number and the code confidential, as well as a telephone number under which the latter may be reached via the mobile telephone network.
  • the protocol object of the present invention comprises a first step, called initialization on location-authentication of the mobile subscriber, this first stage being followed by a second stage of routing proper of an incoming call towards the mobile subscriber who was subjected to the process of initialization on localization-authentication mentioned above.
  • the initialization on location-authentication step consists in carrying out, in a step denoted 1000, from the mobile subscriber transceiver ERR, a location-authentication procedure via the mobile phone network and the subscriber authentication center mobile CAP.
  • This step 1000 has the effect, on location-authentication of the mobile subscriber ERR transceiver, of determining a fixed radio terminal, called location terminal, designated by BFRL.
  • BFRL a fixed radio terminal
  • the fixed radio location terminal BFRL can be, depending on the location of the mobile subscriber and the ERR transceiver assigned to it, one of the fixed radio terminals shown in Figure la.
  • the step 1000 of localization-authentication of the ERR transceiver can be carried out in a conventional manner, as will be described in more detail later in the description. It is understood in particular that the abovementioned step 1000, to ensure the determination of a fixed radio terminal for locating BFRL, may include a sub-step in which the radio transceiver ERR of the corresponding mobile subscriber is authenticated by the CAP mobile subscriber authentication center.
  • step 1000 is then followed by a step 1001, which consists in transmitting to the fixed radio location terminal BFRL, from the mobile subscriber authentication center CAP, the subscription data for the personal communication services.
  • step 1001 which consists in transmitting to the fixed radio location terminal BFRL, from the mobile subscriber authentication center CAP, the subscription data for the personal communication services. SCP as well as the identification number and the confidential code of the corresponding mobile subscriber ERR radio transceiver.
  • step 1001 is then followed by a step 1002 consisting in assigning, at the level of the fixed radio localization terminal BFRL, a direct selection number to the DDI arrival, this DDI number being a number allocated by the ISDN network . It is indicated that the DID number is a free number for the fixed radio localization terminal BFRL and that this number is temporarily assigned for the transceiver ERR, as will be described later in the description.
  • step 1002 is then followed by a step 1003 consisting in transmitting, from the fixed radio location terminal BFRL to the authentication center access to CAAS services via the voice location server SVL, the DID number, the authentication number and the confidential code for access to the SCP services of the ERR transceiver previously mentioned.
  • the aforementioned step 1003 of transmission, to the CAAS access authentication center, is carried out via the CAAS service access center and the PSC-R service control point via the server.
  • voice locator SVL The vocal location server SVL then records the location of the mobile subscriber, the location parameters more particularly consisting of the SDA call number for the fixed radio location terminal BFRL.
  • the protocol which is the subject of the present invention then consists, in a routing step proper of this incoming call, to perform a step denoted 1004b, consisting in transmitting, from the PCS-R service control point to the CAAS service access authentication center, an interrogation message, denoted MI.
  • This interrogation message MI includes at least the telephone number of the radio transceiver ERR of the called mobile subscriber.
  • the authentication center for access to CAAS services knowing the parameters of current location and access to SCP services of the mobile subscriber and the sender -Receiver ERR associated with it, then allows, in a step 1005, the transmission to the fixed location terminal BFRL, on reception of the aforementioned message MI, of a call message MA containing at least the number DID assigned to l mobile subscriber and the ERR transceiver at the fixed location terminal BFRL.
  • the step 1005 previously mentioned is then followed by a step 1006 consisting of a procedure for calling the transceiver radio ERR via the radio channel of the mobile telephone network from the fixed radio locator BFRL.
  • the BFRL terminal periodically searches, by a polling action known as "polling" , for the ERR transceiver and rings it.
  • step 1006 On response to the call procedure 1006 by the ERR radio transceiver, the aforementioned step 1006 is then followed by a step 1007 consisting in establishing communication between the CTA telephone handset and the ERR radio transceiver, this communication being established on the only network, that is to say at the local level, network managed by the local access switch CAAS.
  • the local routing protocol for incoming calls generated by the telephone handset of a subscriber of the public network switched to a cellular telephone telephone network implements the use of DDI number management of the ISDN network in order to manage incoming calls to mobile subscribers of the mobile telephone network as temporary fixed subscribers.
  • any mobile subscriber equipped with an ERR radio transceiver and registering these parameters for access to SCP services becomes in fact and completely transparent to any subscriber of the public switched telephone network having a CTA handset, a subscriber to the DID numbers service of the fixed radio terminal, location terminal, with which the mobile subscriber has located.
  • this protocol provides a unique number for calling ERR transceivers of mobile subscribers regardless the place where these are geographically located in the total absence of a "paper clip" effect in the public switched telephone network.
  • the mobile subscriber can also indicate a location duration beyond which the default location becomes active again.
  • this operating mode is transparent to the mobile subscriber, who only indicates that he wishes to locate his ERR radio transceiver under the fixed radio location BFRL terminal.
  • the access data to the SCP services, card number, confidential code, are then stored at the level of the mobile subscriber authentication center CAP.
  • the location number is then managed by the BFRL fixed location radio terminal, which generates its own DID numbers and associates them with each mobile subscriber who has carried out the location step with the corresponding BFRL fixed location radio terminal.
  • each fixed radio terminal BFR has a set of DDI numbers associated with these two B channels, channels specific to the ISDN network.
  • Each DID number is thus associated with a mobile subscriber who locates under the corresponding fixed radio terminal.
  • a duration location is determined. Indeed, an DID number is likely to be used for a subscriber locating when this DID number is not in use for another mobile subscriber. An SDA number becomes free again when the location reaches a time limit, this time limit being able to be managed for example by the access mechanism to the SCP services and by the fixed radio location terminal BFRL.
  • the step of routing proper is represented in the form of transactions between the various constituent elements of the network.
  • the various transactions include a transaction 1 during which the subscriber of the public switched telephone network, from the CTA telephone handset, dials the number of the mobile subscriber, this transaction occurring between the CTA handset and the service control point. PSC-R through the local access switch to CAAS services.
  • the aforementioned transaction 1 is followed by a transaction 2 during which the service control point PSC-R interrogates the authentication center for access to the CAAS services, which has received all of the location parameters from the mobile subscriber. corresponding to the course of transaction 6 previously described in connection with FIG. 3a.
  • the aforementioned transaction 2 is then followed by a transaction 3 during which the ISDN network establishes the call to the fixed radio terminal BFRL on which the mobile subscriber holder of the corresponding ERR radio transceiver is located.
  • the mobile subscriber is the holder, not only of the mobile subscriber call telephone number, that under which the latter wishes to be called, but also of the parameters for access to the SCP services.
  • a transaction 4 occurs during which the corresponding fixed radio localization terminal BFRL in fact proceeds to the call procedure of the ERR from the aforementioned fixed radio localization terminal, this transaction 4 corresponding to step 1006 of FIG. 2.
  • the aforementioned transaction 4 is then followed by a transaction 5 during which, when the mobile subscriber picks up, the fixed radio localization terminal BFRL makes the two calls to make the interconnection.
  • the fixed location radio terminal When an SDA number of a BFRL fixed location radio terminal expires the allocation time interval allocated to it, the fixed location radio terminal releases this DDI number and can, for example, store this last in a list of numbers that can be used again.
  • the management bodies of the SCP service then also make it possible to cancel the location of the mobile subscriber's telephone number under the fixed radio location terminal BFRL and to activate the default location for this subscriber. No action towards the mobile telephone network is then necessary.
  • FIG. 3a and 3b A more detailed description of the structure of the messages constituting the transactions between the various elements of the network as represented in FIG. 3a and 3b will now be given in conjunction with FIG. 4a, corresponding to FIG. 3a, and 4b corresponding to FIG. 3b .
  • the transactions 2 and 3 in FIG. 3a are represented in the form of successive messages between the fixed location radio terminal.
  • BFRL the corresponding URB-2G connection unit and the CAP mobile subscriber authentication center.
  • the transaction 2 comprises the successive messages T 21 between the fixed radio localization terminal BFRL and T 22 between the connection unit URB-2G and the authentication center CAP.
  • Message T 21 is a location request message between fixed radio localization terminal BFRL and the URB-2G connection unit.
  • the transaction 2 also comprises a message T 22 between the connection unit URB-2G and the authentication center CAP.
  • the transaction 3 finally comprises an authentication response message T 34 transmitted between the fixed radio localization terminal BFRL and the connection unit URB-2G, this message being of course sent in response to the authentication request message T 33 .
  • the messages T 33 and T 34 are temporally prior to the message T 32 , which in fact constitutes the location acknowledgment message.
  • FIG. 4b the messages constituting the transaction 2 are shown in FIG. 3b between the PCS-R service control point and the CAAS service access authentication center previously mentioned.
  • the transaction 2 of FIG. 3b comprises, as shown in FIG. 4b, a request message T 21 making it possible in fact to convey the request for incoming calls originating from the CTA handset.
  • the request message T 21 includes a length field and a requested number field.
  • the aforementioned transaction 2 also includes a response message, noted T 22 , transmitted between the authentication center for access to the CAAS service and the PCS-R service control point.
  • This message T 22 is in fact a response message comprising of course a length field, a requested number field and a DID return number field, this information of course making it possible to effect the termination of the two calls at the level from the BFRL fixed location radio terminal.
  • the protocol object of the present invention makes it possible in fact to remove specific equipment from the mobile telephone network to ensure the routing of the aforementioned incoming calls, this routing then being managed locally by existing fixed network equipment such as the aforementioned ISDN network.
  • the protocol object of the present invention allows in particular to remove the "paper clip" effect previously mentioned in the description, the management of a local call for a mobile subscriber located in the same geographical area as the local call being, thanks to the implementation of the incoming call routing protocol, object of the present invention, achieved at the local level thanks to the implementation of the structural elements of the corresponding ISDN network.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
EP97400069A 1996-01-18 1997-01-15 Protokoll zur lokalen Leitweglenkung für aus dem öffentlichen Fernsprechnetz ankommende Anrufe in einem zellularen Netz Expired - Lifetime EP0785693B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9600538A FR2743968B1 (fr) 1996-01-18 1996-01-18 Protocole d'acheminement local d'appels entrants du reseau telephonique commute dans un reseau cellulaires
FR9600538 1996-01-18

Publications (2)

Publication Number Publication Date
EP0785693A1 true EP0785693A1 (de) 1997-07-23
EP0785693B1 EP0785693B1 (de) 2002-04-17

Family

ID=9488223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97400069A Expired - Lifetime EP0785693B1 (de) 1996-01-18 1997-01-15 Protokoll zur lokalen Leitweglenkung für aus dem öffentlichen Fernsprechnetz ankommende Anrufe in einem zellularen Netz

Country Status (7)

Country Link
US (1) US5970409A (de)
EP (1) EP0785693B1 (de)
JP (1) JPH09238383A (de)
CA (1) CA2195388A1 (de)
DE (1) DE69711950T2 (de)
ES (1) ES2176630T3 (de)
FR (1) FR2743968B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4140676B2 (ja) * 2000-02-21 2008-08-27 株式会社日立コミュニケーションテクノロジー 構内交換機
KR100420576B1 (ko) * 2000-12-18 2004-03-02 선우민 물품에 새겨진 아이디를 이용한 메시지전송방법
US20090245234A1 (en) * 2008-03-31 2009-10-01 Microsoft Corporation Dynamic rerouting of voip sessions
CN107018245A (zh) * 2017-04-01 2017-08-04 深圳天珑无线科技有限公司 通信控制方法和装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0520194A2 (de) * 1991-06-28 1992-12-30 Network Access Corporation Persönliches Fern-Kommunikationssystem
US5325424A (en) * 1991-04-22 1994-06-28 Motorola, Inc. Method of automatically establishing a communication path between two devices

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3132014B2 (ja) * 1991-01-31 2001-02-05 ソニー株式会社 通信装置
US5440613A (en) * 1992-12-30 1995-08-08 At&T Corp. Architecture for a cellular wireless telecommunication system
SE501009C2 (sv) * 1993-03-04 1994-10-17 Ericsson Telefon Ab L M Sätt att omstrukturera en anropssignalram i ett cellulärt mobiltelefonsystem
US5521962A (en) * 1994-06-30 1996-05-28 At&T Corp. Temporary storage of authentication information throughout a personal communication system
US5771275A (en) * 1996-12-17 1998-06-23 Telefonaktiebolaget Lm Ericsson Use of ISDN to provide wireless office environment connection to the public land mobile network

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325424A (en) * 1991-04-22 1994-06-28 Motorola, Inc. Method of automatically establishing a communication path between two devices
EP0520194A2 (de) * 1991-06-28 1992-12-30 Network Access Corporation Persönliches Fern-Kommunikationssystem

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BETTS R ET AL: "ISDN AND INTELLIGENT NETWORK BASED TELEPOINT SERVICE", ELECTRICAL COMMUNICATION, vol. 64, no. 1, 1 July 1990 (1990-07-01), pages 85 - 94, XP000136340 *
FOO C J H ET AL: "TWO-WAY CALLING PUBLIC CT2 TELEPOINT SYSTEM", IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, vol. 13, no. 5, 1 June 1995 (1995-06-01), pages 923 - 931, XP000499098 *

Also Published As

Publication number Publication date
EP0785693B1 (de) 2002-04-17
FR2743968B1 (fr) 1998-03-20
CA2195388A1 (fr) 1997-07-19
ES2176630T3 (es) 2002-12-01
DE69711950D1 (de) 2002-05-23
FR2743968A1 (fr) 1997-07-25
US5970409A (en) 1999-10-19
JPH09238383A (ja) 1997-09-09
DE69711950T2 (de) 2002-11-28

Similar Documents

Publication Publication Date Title
EP0647076B1 (de) Zellulares Funkkommunikationssystem mit Zugriff zu standortabhängigen Diensten, Standortermittlungsmodul und Dienstleistungsmodul für kundenspezifische, standortabhängige Diensten
FR2720583A1 (fr) Procédé d'enregistrement de stations de base auprès d'un combiné dans un système de télécommunications de la deuxième génération, et dispositif associé.
EP0884917A1 (de) Verfahren yum Ermöglichen einer verschlüsselten direkten Kommunikation zwischen zwei Endgeräten eines Mobilfunknetzes und entsprechende Schaltungsanordnungen für die Station und das Endgerät
EP1782608A1 (de) Verfahren und system zur benutzerlokalisierung für dienste auf der grundlage von sip- oder h.323-protokollen mit dynamischer ip-adressen-zuweisung
FR2966672A1 (fr) Connexion dynamique d'un terminal mobile a un reseau local.
FR2758227A1 (fr) Procede d'etablissement d'appels d'urgence dans un systeme de telecommunications et unites d'abonnes fonctionnant selon un tel procede
FR2582175A1 (fr) Procede et dispositif de telecommunications par satellite en acces multiple a repartition dans le temps
EP0932315B1 (de) Vorrichtung zur Erkennung eines gerufenen Endgeräts aus mehreren Teilnehmerendgeräten einer Fernsprechvermittlung, wobei die Fernsprechvermittlung mit mindestens einem festen Funkfernsprechendgerät verbunden ist
EP1377103B1 (de) Verfahren und System zur Subskriptionsteilung zwischen mehreren Mobilfunktelefonendgeräten
FR2712130A1 (fr) Réseau de données.
EP1452003B1 (de) Verfahren zur verwaltung einer übertragung mit mitteln zur bereitstellung eines dienstes mit mehreren servern
EP0785693B1 (de) Protokoll zur lokalen Leitweglenkung für aus dem öffentlichen Fernsprechnetz ankommende Anrufe in einem zellularen Netz
EP3682623A1 (de) Verfahren zur telefonischen verknüpfung eines kommunikationsendgerätes mit mehreren nummern
EP1457031B1 (de) Verfahren und system zur automatischen anrufweiterleitung
EP1709787A1 (de) Verfahren zur herstellung von verbindungen zwischen einem telefon-endgerät und einem ip-endgerät
EP0831668A1 (de) Selbstanpassendes Protokoll zwischen Basisstationen eines zellularen Telefonnetzwerkes
FR2879874A1 (fr) Procede de demarrage d'une station ip, systeme, serveur et station le mettant en oeuvre et procede d'etablissement d'appel telephonique
FR2711033A1 (fr) Système de radiocommunication cellulaire permettant l'accès à un service fonction de la localisation, module de prélèvement et module de fourniture d'un service personnalisé correspondants.
FR2808403A1 (fr) Installation et procede de telecommunication pour l'echange d'informations entre des telephones et des fournisseurs de services
FR2815800A1 (fr) Procede et systeme de communication de donnees
EP1457027B1 (de) Verfahren und system zur bereitstellung eines verzeichnisdientes
FR3104877A1 (fr) Procédé d’accès à un terminal associé à un premier réseau à partir d’un identifiant d’accès à un deuxième réseau
EP0778717A1 (de) Ruflenkungsprotokol für aus einem öffentlichen Fernsprechwahlnetz in einem mobilen Netzwerk eingehende Rufe
EP1638353B1 (de) Verfahren und Vorrichtung zur Verwaltung des Austausches von Nachrichten zwischen zwei Kommunikationseinrichtungen
WO2007063211A1 (fr) Declenchement automatique de communications

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES GB IT

17P Request for examination filed

Effective date: 19970623

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20010618

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES GB IT

REF Corresponds to:

Ref document number: 69711950

Country of ref document: DE

Date of ref document: 20020523

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20020710

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2176630

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030115

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030116

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20030120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030801

GBPC Gb: european patent ceased through non-payment of renewal fee
REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050115